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2842 = 27229
BaseRepresentation
bin101100011010
310220021
4230122
542332
621054
711200
oct5432
93807
102842
112154
12178a
1313a8
141070
15c97
hexb1a

2842 has 12 divisors (see below), whose sum is σ = 5130. Its totient is φ = 1176.

The previous prime is 2837. The next prime is 2843. The reversal of 2842 is 2482.

It can be divided in two parts, 28 and 42, that multiplied together give a triangular number (1176 = T48).

2842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2842 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 2401 + 441 = 49^2 + 21^2 .

2842 is a modest number, since divided by 42 gives 28 as remainder.

It is a plaindrome in base 12.

It is a nialpdrome in base 8 and base 15.

It is not an unprimeable number, because it can be changed into a prime (2843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84 + ... + 112.

22842 is an apocalyptic number.

2842 is a deficient number, since it is larger than the sum of its proper divisors (2288).

2842 is a wasteful number, since it uses less digits than its factorization.

2842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45 (or 38 counting only the distinct ones).

The product of its digits is 128, while the sum is 16.

The square root of 2842 is about 53.3104117410. The cubic root of 2842 is about 14.1647209938.

The spelling of 2842 in words is "two thousand, eight hundred forty-two".

Divisors: 1 2 7 14 29 49 58 98 203 406 1421 2842